//
//  Status.swift
//  Weibo10
//
//  Created by 吕昱坪 on 15/12/11.
//  Copyright © 2015年 itcast. All rights reserved.
//

import UIKit
/// 微博数据模型
class Status: NSObject {
    /// 微博ID
    var id: Int = 0
    /// 微博信息内容
    var text: String?
    /// 微博创建时间
    var created_at: String?
    /// 微博来源
    var source: String?
    
    ///缩略图配图数组 key: thumbnail_pic
    var pic_urls: [[String: String]]?  //里面一层是字典，在加[]为数组
    
    /// 用户模型
    var user: User?
    ///被转发的原微博信息字段
    var retweeted_status: Status?
    
    init(dict: [String: AnyObject]) {
        super.init()
        
        //如果使用KVC时， value是一个字典，会直接给属性转换成字典
        setValuesForKeysWithDictionary(dict)
    }
    
    //字典有多少个值就会调用几次这个方法
    override func setValue(value: AnyObject?, forKey key: String) {
      
        //判断 key是否为 user
        if key == "user" {
            if let dict = value as? [String: AnyObject] {
            user = User(dict: dict)
            }
            return
        }
        
        //判断 key是否是 retweeted_status
        if key == "retweeted_status" {
            if let dict = value as? [String: AnyObject]{
                
                retweeted_status = Status(dict: dict)
            }
            return
        }
        super.setValue(value, forKey: key)
    }
    
   override func setValue(value: AnyObject?, forUndefinedKey key: String) {}
    
   override var description: String {
        let keys = ["id", "text", "created_at", "source","user", "pic_urls","retweeted_status"]
    
         return dictionaryWithValuesForKeys(keys).description
    }
}







